Arthur G. Holder, still active at GTU, was the longest serving Dean at GTU. He is a historian of Christian spirituality with particular interests in early medieval biblical interpretation, mysticism, and the writings of the Venerable Bede. A priest of the Episcopal Church, he was Professor and Academic Dean at the Church Divinity School of the Pacific before serving as Dean and Vice President of Academic Affairs for the Graduate Theological Union (2002-2016). In the American Academy of Religion he has been co-chair of the Christian Spirituality Group (2003-2008) and a member of the Theological Education Committee (2013-2016). He is an active member in the Society for the Study of Christian Spirituality, for which he served as President in 2009.